All categories

3 years ago

Was the following number correctly or incorrectly converted from Standard Form to Scientific Notation?

Mathematics

1 answer:

Deffense [45]3 years ago

8 0

Answer: The number was incorrectly converted.

Explanation: The error is in the sign of the power: -9

While $1\cdot10^{-9}=0.000000001\\$ , the power should have been positive 9 because

$1\cdot10^9=1,000,000,000$

So the correct conversion is as follows:

$86130600000.0\rightarrow86.1306\cdot10^9$

You might be interested in

PLZ ANSWER APSP IM IN THE TEST RN!!!

olchik [2.2K]

Answer:

x = 38

y = 25

Step-by-step explanation:

To find x, you do

(2x + 5) = (3x - 33)

Subtract 2x from both sides to isolate x on one side, you get:

5 = (x - 33)

Add 33 to both sides to separate the normal number from the x, you get:

38 = x

From there, you plug x into one of the equations

2(38) + 5

The answer's 81, meaning that angle is 81 degrees. Using supplementary angles, you can find that angle ACD = 99, which you can use to find angle BCE. You'll get this equation:

(4y - 1) = 99

Add one to both sides to get rid of it, you get:

4y = 100

Divide by four, to get the y all alone:

y = 25

I hope this helped!

8 0

4 years ago

Read 2 more answers

How area tables, graphs, and equations helpful when you work with proportions

Scorpion4ik [409]

To help answer the questions

3 0

4 years ago

Determine the number of significant digits in the measurement <br> 0.79 cm

antiseptic1488 [7]

2 significant digits

5 0

3 years ago

9. r = (-8) = 5

Oksana_A [137]

Answer:

r ÷(-8) = 5

i have answered the question u asked earlier

4 0

3 years ago

Three solid shapes A,B and C The surface area of shape A is 9cm² The surface area of shape B is 16cm² The ratio of the volume of

dmitriy555 [2]

Answer:

9:20

Step-by-step explanation:

Given:

Surface area of shape A = 9 cm²

Surface Area of shape B = 16 cm²

Ratio of volume of shape A to B = 27:125

Required:

Find the ratio of the height of shape A to the height of shape C.

Ratio of surface area (A:B)² = ratio of linear measures (A:B)

Thus,

(A:B)² = (A:B)

(A/B)² = (A/B)

$(\frac{A}{B})^2= (\frac{9}{16})$

Take the square root of both sides:

$(\sqrt{\frac{A}{B}})^2 = (\sqrt{\frac{9}{16}})$

$\frac{A}{B} = \frac{3}{4}$

Ratio of volume of shape B to C = 27:125

Thus,

(B:C)³ = 27:125

$(\frac{B}{C})^3= (\frac{27}{125})$

Take the cube root of both sides:

$(3\sqrt{\frac{B}{C}})^3 = (3\sqrt{\frac{27}{125}})$

$\frac{B}{C} = \frac{3}{5}$

Therefore, ratio of lengths A:B:C =

3:4:C

A:3:5

To make them equivalent, we have:

9:12:C

A:4:20

Therefore, the ratio of the height of shape A to the height of shape C =

9:20

6 0

4 years ago